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Approche quantitative pour laborer une echelle d'evaluation experte d'un indicateur de stabilite structurale

Abstract : In mountains, torrential check dams reduce liquid and solid flows and protect human and material assets at risk. Assessing their structural effectiveness is necessary to choose actions and maintenance strategies. Fuzzy sets can be used to represent needed indicators. Our approach aims at building those fuzzy numbers according to an objective way taking into account internal and external stability of the protective structure. This paper describes a fuzzy evaluation methodology of a scouring indicator. From a structural perspective, this case indeed corresponds to a critical situation associated to soil bearing capacity removal. Classical external stability justification according ultimate (ULS) and service (SLS) limit states are considered as a reference. Gaps between this reference and different scouring scenarios are first interpreted as a measure of scouring indicator. Secondly, the reference is adapted through a reduction of partial coefficients and imprecise loads considered in actions combinations. Finally, the global analysis makes it possible to propose fuzzy sets of scouring impact based on an external stability calculation methodology.
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https://hal.inrae.fr/hal-02605953
Contributor : Migration Irstea Publications <>
Submitted on : Saturday, May 16, 2020 - 11:40:25 AM
Last modification on : Tuesday, September 7, 2021 - 3:54:53 PM

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  • HAL Id : hal-02605953, version 1
  • IRSTEA : PUB00053660

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S. Carladous, J.M. Tacnet, G. Di Ciocco, C. Curt, M. Batton-Hubert. Approche quantitative pour laborer une echelle d'evaluation experte d'un indicateur de stabilite structurale. 9èmes Journées Fiabilité des Matériaux et des Structures JFMS 2016, Mar 2016, Nancy, France. pp.7. ⟨hal-02605953⟩

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